Two-way adjustable wind turbine tower hoisting special combination spreader

Abstract

The invention relates to a special-purposed bidirectional regulation combined lifting appliance for lifting a tower drum of a wind driven generator, belonging to auxiliary devices for installing the wind driven generator; the special-purposed bidirectional regulation combined lifting appliance is characterized by mainly comprising a main lifting appliance and auxiliary lifting appliances, whereinthe main lifting appliance mainly comprises a left pin shaft, a right pin shaft, a regulating casing pipe, a left installing plate, a right installing plate and lifting lug plates; both the left pin shaft and the right pin shaft are tubular shafts which are formed by winding and welding high-strength steel plates; a left internal thread and a right internal thread are turned on the regulating casing pipe so as to be spirally assembled with the left pin shaft and the right pin shaft correspondingly; the left installing plate and the right installing plate are respectively sheathed on the left pin shaft and the right pin shaft correspondingly; mounting screw holes are correspondingly arranged at the bottoms of the left installing plate and the right installing plate so as to be connected with a front flange plate of the tower drum; the lifting lug plates provided with shackles are respectively welded on the left pin shaft and the right pin shaft correspondingly; each auxiliary lifting appliance comprises an arc-shaped bottom plate and a cambered surface upright plate which are vertical to each other; bolt holes are arranged on the bottom plates; the bottom plates of the two auxiliary lifting appliances and a rear flange plate of the tower drum are horizontal in opposite angles and are connected by bolts; and the lifting of the tower drum is efficient and safe and is low in cost.

Description

technical field [0001] The invention belongs to a wind power generator installation auxiliary device, in particular to a special hoisting tool for wind power generator tower hoisting. Background technique [0002] The wind turbine tower is cylindrical, and the towers of different types of wind turbines have different sizes. Generally, the weight of a single tower is 30~50t, and the length is about 30m. A wind turbine is generally composed of 2~3 towers. When hoisting the wind turbine tower, generally two main and auxiliary cranes are used to cooperate with each other. The two cranes are respectively located at the front and rear ends of the tower, and the front and rear ends of the tower are respectively hoisted, but it takes repeated trials to find out. Accurate and suitable hoisting hook lifting points are time-consuming, inefficient and affect the coordination of the two cranes. At the same time, it also brings difficulty and safety hazards to the installation of the towe...

AI Technical Summary

Problems solved by technology

[0002] The wind turbine tower is cylindrical, and the towers of different types of wind turbines have different sizes. Generally, the weight of a single tower is 30~50t, and the length is about 30m. A wind turbine is generally composed of 2~3 towers. When hoisting the wind turbine tower, generally two main and auxiliary cranes are used to cooperate with each other. The two cranes are respectively located at the front and rear ends of the tower, and the front and rear ends of the tower are respectively hoisted, but it takes repeated trials to find out. Accurate and suitable lifting hook lifting point is time-consuming, inefficient and affects the coordination of the two cranes, and also brings difficulty and safety hazards to the installation of the tower tube

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